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Author: kleisauke

system/lib/wasmfs/backends/node_backend.cpp

@@ -23,6 +23,9 @@ class NodeState {
   int fd = -1;
 
 public:
+  // Base path in the host filesystem for this backend.
+  // An empty string means "no base path": paths are used as-is without
+  // prefixing.
   std::string path;
 
   NodeState(std::string path) : path(path) {}

system/lib/wasmfs/backends/noderawfs_root.cpp

@@ -6,5 +6,9 @@
 #include "emscripten/wasmfs.h"
 
 backend_t wasmfs_create_root_dir(void) {
+  // Use an empty string as the backend "path" to indicate that this backend
+  // is mounted at the real filesystem root. In this mode, paths are passed
+  // through verbatim (no "./" prefix or path rewriting), which is required
+  // for correct handling of absolute paths under NODERAWFS.
   return wasmfs_create_node_backend("");
 }